一例“红绿宝”饰品的鉴定

Identification of a Jewel made of"Red and Green Stone"

利用宝石显微镜、红外光谱仪、X荧光能谱仪等测试仪器对一件“红绿宝”饰品进行鉴定分析,结果表明该饰品的主要矿物绿色部位是云母而红色部位是红宝石。在宝石显微镜下绿色部位具有阶梯状断口现象,说明具有完全解理。红外吸收光谱显示绿色部位为云母,红色部位为红宝石。X荧光能谱分析显示绿色部位存在明显的Cr元素,是其呈现绿色的原因。

A jewel named as"Red and Green Stone"in market was identified and analyzed by the gemstone microscope,infrared spectrometer,X-ray fluorescence spectrometer and other test instruments.The results showed that the main mineral composition in the green part of the jewel was mica and the red part was ruby.A stepped fracture was observed in the green part under the gem microscope,which is a complete cleavage.The infrared absorption spectrum showed that the green part was mica and the red part was ruby.The result of X-ray fluorescence spectrum analysis indicated that the element of Cr was obvious in the green part and caused the colour of green.